So happy with the mailing boxes, colour is perfect and nice and sturdy for mailing. Great product.
310 x 230 x 105mm A4 Premium Tuck Full Mint Blue Mailing Box B311
Description
This premium mint blue tuck front mailing box (B311) measures 310 x 230 x 105mm internally and is mint blue inside and out, sized for A4 items. Its matte finish and self-locking tuck front give a clean, polished unboxing, while the double-walled sides and front flap add strength in transit. Use it as a mint blue mailer box for e-commerce orders or as a gift box for presents and subscription boxes.
Key Features
- Mint Blue inside and out: The box is mint blue on the outside and the inside, with a matte finish, so it looks finished the moment it is opened.
- Self-locking tuck front: Folds into shape and tucks closed to form a secure, neat mailer box.
- Double-walled sides and front flap: The tuck front construction folds the side walls and front flap double for extra rigidity and crush resistance.
- Internal size 310 x 230 x 105mm (A4): Measured inside the box, suited to A4 documents and prints, folded clothing, books and multi-item gift sets.
- 100% recyclable and FSC certified: Made from 100% recyclable corrugated board from FSC-certified sources, so it can go straight into paper recycling.
- 90-day money-back guarantee: Backed by the eBPak 90-day money-back guarantee.
Specifications
| Product code | B311 |
|---|---|
| Internal dimensions (L x W x H) | 310 x 230 x 105mm |
| Paper size fit | A4 |
| Box style | Tuck front, self-locking |
| Colour | Mint Blue inside and out |
| Finish | Matte |
| Board | D-flute corrugated board |
| Construction | Double-walled sides and front flap |
| Recyclable | 100% recyclable |
| Certification | FSC certified |
| Pack size | 50 boxes |
| Guarantee | 90-day money-back guarantee |
Ideal For
- Branded e-commerce orders and unboxing
- A4 documents, prints and books
- Folded clothing and multi-item gift sets
- Subscription boxes
- Gift boxes and corporate gifting
Browse the full range of Premium Full Mint Blue Tuck Mailers.
Free Dieline Template
Designing your own print for this box? Download the dieline template (PDF, 310 x 230 x 105mm). It is drawn at full size with cut lines, crease lines and a 3 mm bleed. Place your artwork on it in Illustrator or Affinity Designer, extend backgrounds to the bleed edge and keep text and logos 5 mm inside the lines.
- Lay the flat box printed side down and fold up the two long side walls.
- Fold the side flaps in (or push the locking tabs into the slots in the base, on diecut styles).
- Fold up the back wall, then pack your items. Add tissue paper or bubble wrap for fragile pieces.
- Close the lid and tuck the front flap into the front of the box.
- Self-seal styles have an adhesive strip on the flap. On other styles, seal the front flap with a strip of tape or a branded sticker for heavier items or extra security.
- Free delivery to Sydney & Melbourne metro on orders over $500.
- $50 flat rate to Wollongong areas and $75 to Gosford & Newcastle areas (up to 2 tonne).
- Australia-wide delivery via Australia Post and trusted couriers.
- Free pickup from Minto NSW or Braeside VIC, Mon–Fri 9am–4pm.
- 90-day returns on unopened items. See our refund policy.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Sizing
What fits in this box
Inside: 310 x 230 x 105mm (length x width x height)
- A4 documents, folders and books lie flat
- About 7.5 litres of space inside
- Same colour inside and out, for a neat unboxing
- Delivered flat, folds into shape in seconds
- Sizes are inside measurements. Allow 5–10mm each side for tissue paper or bubble wrap.
- Not sure? Use the size finder below or call us on (02) 8750 5347.
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Size finder
Not sure of the size? Enter your item's dimensions.
Enter your item's measurements on the left, then press Search to see every size we stock that fits.
Nothing in stock fits that size.
Request a custom box quote
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Wholesale · Bulk packs
Buying in bulk? Pay less per box.
Order 1,000+ mailing boxes, or Australian-made shipping cartons by the pallet, and we'll quote a wholesale price. Trade accounts get invoice terms and a dedicated contact.
Questions about this box
What fits in a 310 x 230 x 105mm box?
A4 documents, folders and books lie flat (A4 is 297 x 210mm), with 105mm of height for shoes, clothing, gift sets and bundles of products.
Is the size inside or outside the box?
All sizes are internal (length x width x height), measured inside the box. The outside is a few millimetres bigger because of the board thickness.
Can I get this size in other colours or styles?
Yes. This A4 size comes in white, brown, black, pinks, blues, green, red, purple, lavender and orange, in diecut, tuck-front and self-seal styles. Use the "Same size, more colours & styles" link above the description to see them all.
What does "Full" or "Premium" colour mean?
"Full" colour boxes (for example Full Black or Full Rose Pink) are printed the same colour inside and out, so the box looks finished the moment it's opened. Most other coloured boxes are coloured outside with a natural kraft inside.
Are the boxes delivered flat?
Yes. The boxes are delivered flat in packs and fold into shape in seconds, so they take up very little shelf space.
Can I print my logo on the box?
Yes. We make custom printed boxes from 1,000 units, usually in around 2 weeks. Get a quote. For smaller runs, a printed sticker or stamp on a plain box works well.
What does the pack size mean?
The pack size is how many boxes come in one pack, for example x100 is a pack of 100 boxes. "Number of packs" sets how many packs you get, so x100 with 2 packs is 200 boxes.
Can I return the boxes, or pick up my order?
Yes to both. We offer 90-day returns on unopened items (see our refund policy), and you can choose pickup at checkout and collect from Minto NSW or Braeside VIC, Monday to Friday 9am to 4pm.
Customer Reviews
Overall rating: 5.0 / 5 from 1 reviews.
Need it today? Pick it up.
Order online and we'll usually have it ready in 15–30 minutes at either warehouse.
NSW
Sydney — Minto
Unit 2, 1 Swaffham Road, Minto NSW 2566
Mon–Fri 9am–4pm · Sat–Sun closed
Get directions
VIC
Melbourne — Braeside
21–23 Endeavour Way, Braeside VIC 3195
Mon–Fri 9am–4pm · Sat–Sun closed
Get directions
Talk to our team
Call us on (02) 8750 5347
Fast delivery Australia-wide
Via Australia Post and trusted couriers
Pickup in Sydney & Melbourne
Minto NSW and Braeside VIC
90-Day Returns
On unopened items